Von Willebrand Disease Awareness Day is observed in the United States every March 1, marking the beginning of National Bleeding Disorders Awareness Month. This day aims to highlight von Willebrand disease (VWD), the most common hereditary bleeding disorder, which affects approximately 1% of the population. VWD is caused by a deficiency or dysfunction of the von Willebrand factor, a crucial protein for blood clotting. There are three types of VWD, with Type 1 being the most common and often underdiagnosed due to mild symptoms. Treatment varies by type; for Types 1 and 2A, desmopressin is commonly used, while Types 2 (other subtypes) and 3 require infusions of von Willebrand factor concentrate. The day is promoted by organizations such as the Hemophilia Federation of America, emphasizing the importance of understanding and addressing bleeding disorders.